Packing-ring.



E. T. WESTMORELAND.

PACKING RING.

APPLICATION FILED ocr. I6, 1915. RENEWED' MAY :7, I911.

Patented July 3. 19170 ERNEST '1. WESTMORELAND, F CHILDRESS, TEXAS.

PACKING-RING.

Specification of Letters Patent.

Patented Judy 3, Tgllt.

Application filed October 16, 1915, Serial No. 56,219. Renewed May 17,1917. Serial No. 169,341.

To all "whom it may concern:

Be it known that I, ERNEST T. WESTMORE- LAND, a citizen of the UnitedStates, residing at Childress, in the county of Childress and State ofTexas, have invented certain new.

and useful Improvements in Packing-Rings,

of which the following is a specification."

My invention relates to packing rings for pistons and the like; and theobject is to provide a simple packing ring which has continual packingsurfaces on the upper and lower'edges and on the periphery thereof andwhich is expansible and resilient; other objects and advantages will befully explained in the following description and the invention will bemore particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of thisapplication.

'iFigure 1 is a perspective view of the improved packing ring. Fig. 2 isa similar view of a variation in the construction of the packing ring.Fig. 3 is a similar view of another variation from the ring shown inFig. 1. Fig. 4 is a similar view of another variation from the ringshown in Fig. 1. .Figs. 5 and 6 are diametrical sections of packingrings which are variations in construction of the rings shown in Figs. 1and 2.

Similar characters of reference are used to indicate the same partsthroughout the several views.

The improved packing ring includes inner and outer members. The innermember 1 is an open ring, having an opening at 2. The outer member 3 isan open ring, terminating with stepped ends 4:. A stop 5 is rigidlyattached to the inner. member 1 and this stop has stepped ends to meetthe stepped ends 4 to form .a lapped or stepped joint. The stop 5conforms in cross-sectional area to the cross-sectional area of ring 3and co operates with the ring 3 to form a. continuous peripheral surfaceand also to maintain the balance of the rings 1 and The expansion of theinner ring 1 and the outer ring 3 is at substantially diametricallyopposite points. The outer ring 3 bridges the opening in. the inner ring1 to form a continuous peripheral surface and to form co tinuous packingsurfaces on the hotter top edges. "lfhere can be no leaking pa ring onthe periphery or on. the top or he t rn edge.

The ring shown in Fig. 2 has the same lnner ring 1 with the opening 2.The outer ring 6 is an open .ring with the opening diagonally oppositethe opening 2 of ring 1 for the purpose of keeping the pressurebalanced. In orderto maintain this balance a dowelv pin 7 is inserted inand made rigid with ring 1. The .ring 6 has the severed portions steppedto form a lapped joint and the end 8 has a recess to receive the pin 10.The parts 9 and 10, when placed on a piston, are locked together by adowel pin 11 which is rigid with the ring 1, the dowel pin 11 beingdiametrically opposite the opening in ring 1. The parts 9 and are bothopen rings and each has an expansion part 12. The ring shown in Fig. 3has the same functional advantages which the. ring shown in Fig. 1 has,the balancing points of the rings being maintained diagonally oppositein both rings.

The form of ring shown in Fig. 4 has the same inner member 1 with theopening 2. The outer member is composed of two parts 13 and 14. Themembers 13 and'14 lap on each othenand, when placed on a piston, areheld against displacement by dowel pins 15 and 16. The functionaladvantageaas to sealing on the periphery and on the top and bottom, arethe same as those of the packing ring shown in Fig. 1.

It is necessary to have the opening of the interiormember of the packingring substantially diametrically opposite opening in the exterior memberfor the purpose of maintaining a proper balance of the packing members.The means shown in all four of the forms have the openings of theanterior member substantially opposite the openings of the interior,member.

The forms shown in Figs. 1 and 2 may have a channeled construction, suchas she 11 respectively in Figs. 5 and 6.

ring members may beef any desiras to depth and. thiclmess and diab esize the p ameter. The stop 5 and the dowel pins 7, 11, 15, and 16 allserve as stops to hold the rings in balance.

What I claim, is, a

1. A packing ring comprising an inner open ring member and an outer openring member co-extensive with the peripheral surface of the innermember, the opening of the outer member being substantiallydiametrically opposite the opening of the inner member and the severedportions of the outer member having stepped ends, and a stop having thesame thickness and width as said inner and outer members cooperatingwith the severed portions of said outer member to hold the said innerand outer members in balanced relation and to form leak proof jointswith said stepped ends.

2. A packing ring comprising an inner open expansible ring member, astop rigid therewith on the exterior thereof and having the same widthand having a step on the upper side at one end and a step on the lowerside at the other end and an outer open expansible ring member equal inwidth to said inner member and having the severed ends stepped toconform in contour to the steps in said stop and engaging the steps ofsaid stop.

In testimony whereof, I set my hand this 9th day of October, 1915.

ERNEST T. \VESTMORELAND.

